A variation on the classic Boston Consulting model of product portfolio management the classic 2 X 2 matrix, dogs, cows, stars, and, and, and, everybody forgets the fourth category. Usually it is depicted with a “?” in the matrix, and records those projects that are attractive, but where there is little competitive skill you can bring to bear.
Make it easy, just cows, dogs, and kids!
You milk your cows,
Lose your dogs, and
Invest in your kids.